Apparatus for cleaning separator bowls and the like



May 8, 192& 1,668,955

E. A. FORSBERG APPARATUS FOR CLEANING SEPARATOR BOWLS AND THE LIKE FiledAug. 5. 1922 2 Sheets- Sheet 1 May 8, 1928.

E. A. FORSBERG APPARATUS FOR CLEANING SEPARATOR BOWLS AND THE LIKE 2Sheets-$heet Filed Aug.' 5. 1922 gill; 11111 I Patented May 8 1928.

UNITED si-"Ar PATENT oeeies.

ERIK AUGUST. FORSBERG, OF STOCEHOLM, SWEDEN, ASSIGNOR; BY ,MESNE'ASSIGN': MENTS, TO THEDE LAVAL SEPARATOR COMPANY,'QF NEW YORK, N. Y, ACOR.-

IORATION OF NEW JERSEY.

APPARATUS FOR CLEANING SEPARATO R BOWLS AN D THE LIKE.

Application filed August a, 1922, Serial No. 5793196, and in swedenSeptember 22, 1921.

In centrifugal separation of liquids in which particles of greaterspecific gravity than that of the liquid. are sl ispendcd, thedifficulty is often encountered that the heavier particles deposit onthe wall of the bowl and silt up tlie latter that the separation must bediscontinued to have the bowl cleaned. Under such conditions the workwill necessarily be intermittent. on account of the alternating workingaud cleaning ilar parts by washing same with the aid of? mechanicalmeans as simple as possible, and

the invention isbased onthe use of a steam in ector sucking up water anddischarg ngit in a heated state againstthe parts to be cleaned. As iswell known, it is then pos sible, by suitably selecting the constructionof the injector, to impart to the water a" high discharge velocityw'liile the. temperature of the Water is atthe same time} raised to theboiling point. The separator bowl'to be cleaned is preferably mountedpivotally so as to be capable of being rotatedin the course of thewashing operation, and the'jet" of hot water is preferablydirected'obliquely against the surface ofthe bowl, in ordert'o make thelatter revolve by the action of the jet, whereby the whole of thesurface impinged upon bythe jet is being successively cleaned. i

In a number of cases, the relative position between the bowl and the"discharge nozzle iiiaylie maintained constant, apart'fromthe saidrotation, if such relative position is one that will insure washing theentire surface to be cleaned. Inother cases, it may be'neccssary toalter, in the course of the cleaning procedure, the relative a-Xialposition be} tween the discharge nozzle and the bowl,

which may of course be effected by shifting or both of the said and aplan viewrespectively; a modified ar-- rangement for cleaning? thecasing of a separatorbowl. Figs. Sand 6 area vertical section and a planview respectively of an arrangeiiieiit for cleaning the insert of aseparator bowl.

lVitli reference to the arrangement disclosed in Figs. 1 and '2, thecasing Aor bowl body, is mounted upsidedowir on the franie' B, which isfreely rotatable in the bearing Cl Cold or, perhaps, slightly heatedwater flows intotlie injector D and is discharged as hot water at agreat velocity through the injector which directedso that the ct willhit. the inner-periphery of the casing in an oblique direction,vertically aswell'as horizontally. The casing is brought into rotationowing to the said oblique direction of the jet, and the speed ofrotation in'ayhe' adapted to suit different conditions by selecting theproper angle of discharge, Bythe oblique vertical direction of the jet,the liqui.d,"on having hit the inner wall of thebowl, is thrown upwards,and in thisway the whole inner wall will be subjected to the action ofthe jet. The slime washed 0a and the wash-liquid are dischargeddownwardsand may then bel'ed ofi. Preferably, the whole arrangement is surroundeda protecting casing E which prevents hot water from be ingsplashedahout; e

A similar arrangement is disclosed in Figs.

3 aud t, where a separator bowl casing Fjof a different'form is shown asmounted upside down on arotatahlesuppo'rt B mounted in a bearing. C andthe jet is directed obliquely inwards and downwards from the injectorDso that the whole inner' conical surface is washed" clean while'thecasing is caused to rotate, f

Accordingto Fig. 5, the bowl inset mounted for cleaning. comprises agreat number of conical'dislis disposed on a so-called center.

crossG; 'lllie ceiitercross with the disks H disposed thereon isiii'ounted' on a stud J" height between the injector and the disk insetis varied, which may be effected by the stud J being provided with athread engaging a similar thread in the support of the stud, so that thecenter cross and the disks will be lowered slowly while the disks arerotating, whereby the set of disks will be gradually subjected to thewashing action all over. Obviously, other mechanical arrange ments maybe used as well for the axial dis placement of the set of disks or theinjector.

What I claim as new and desire to secure by Letters Patent of the UnitedStates of America is 1. In a centrifugal bowl cleaner, the combinationof means to support a bowl shell rotatably on its axis, and means tosupply fluid under pressure including a nozzle positioned in fixedrelation to the bowl-supporting means and at such angle as to project,toward the inner wall of the bowl adjacent its open end, a concentratedjet of such fluid in a directionintersecting planes including the axisof the bowl and also intersecting planes which are at right angles tothe axis of the bowl, thereby causing said fluid to rotate the bowl onits axis and simultaneously scour the bowl shell along a multitude ofpaths extending from end to end of the bowl. i

v 2. In a centrifugal bowl cleaner,the combination with means to supporta bowl shell in inverted position to rotate on a vertical axis, of anozzle whose discharge is positioned nearer than the bowl. wall to thebowl axis and which is adapted to forcibly proj ect a concentrated fluidjet toward the lower end portion of the bowl in a direction intersectinghorizontal planes and also intersecting vertical planes including theaxis of rotation and thereby adapted to turn the bowl on its axis duringthe said cleaning action and plough awav the sediment collected on thebowl wall along a multitude of paths extending from top to bottom of thebowl wall.

In a centrifugal bowl cleaner, the combination, with a. base, of a ringrotatably mounted on the base and adapted to engage the nave of aninverted bowl shell, whereby the ring and bowl shell are rotatablysupported on the base, and a nozzle supported on the base and positionedthereon to project a jet, upward toward the lower part of the inner wallof the shell along a line eiverging from the axis of the shell andextending at an oblique angle to a line tangential to the wall of theshell at the point of impact of the jet.

4f In a bowl cleaner, the combination with means to support a bowlrotatably on its axis, and means to supply fluid under pressureincluding a nozzle positioned in lixed relation to the bowl-supportingmeans and at such angle as to'project, toward the inner wall of the bowladjacent its open end, a concentrated jet of such fluid in a directionoblique to a plane through the axis of rotation of the bowl, therebycausing said fluid to rotate the bowl on its axis and simultaneouslyscour the bowl shell along a multitude of paths extending from end toend of the bowl.

5. An apparatus for cleaning a centrifugal separator bowl elemcnt fromslime deposited thereon during the process of separation, comprising, incombination, means to support the bowl element to allow it to freelyrotate on its axis, and a non-rotatable high velocity steam-waterinjector positioned to discharge a concentrated jet of hot waterforcibly against'the silted surface of said bowl element in a non-radialdirection to impart a movement of rotation to the bowl element and alsoin a direction oblique. to planes at right angles to the axis ofrotation of said bowl element to cause the water to forcibly ploughalong the surface of the bowl element in a direction oblique to itscircumferential direction of rotation.

6. An apparatus for cleaning the parts of a centrifugal separator fromslime deposited thereon during the process of separation, comprising, incombination, means for mounting a separator bowl element so as to berotatable about the axis thereof, a steamwater injector adapted todischarge a jet of hot water with high velocity in a nonradial directionagainst the surface of said part to be cleaned, 'a threaded memberrotatable with the bowl to be cleaned and a threaded support engagingsaid threaded member so that, in the rotation of the part of the bowl tobe cleaned, it will have a bodily movement along the axis of rotation.

7. An apparatus for cleaning the parts of a centrifugal separator fromslime deposited thereon during the process of separation, comprising, incombimition, means for mounting a separator bowl element so as to berotatable about the axis thereof. a steam-water injector adapted todischarge a jet of hot water with high velocity in a non-radialdirection against the surface of said part to be cleaned, and means,operative in the rotation of the part of the bowl to be cleaned, toimpart to said bowl part a bodily movement along its axis of rotation.

In testimony whereof I aflix my signature.

ERIK AUGUST nonsense.

ill)

llll) lll)

